:root,
[data-theme="dark"] {
    color-scheme: dark;
    --bg: #0b0f19;
    --surface: #121826;
    --surface-2: #1a2234;
    --border: rgba(255, 255, 255, 0.08);
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --credit: #34d399;
    --debit: #fb7185;
    --radius: 16px;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    --glass: rgba(255, 255, 255, 0.03);
    --navbar-bg: rgba(18, 24, 38, 0.95);
    --backdrop: rgba(0, 0, 0, 0.5);
    --modal-backdrop: rgba(0, 0, 0, 0.6);
    --body-gradient-1: rgba(99, 102, 241, 0.18);
    --body-gradient-2: rgba(34, 197, 94, 0.08);
    --alert-success-text: #86efac;
    --alert-error-text: #fca5a5;
    --alert-info-text: #a5b4fc;
    --input-focus-ring: rgba(99, 102, 241, 0.15);
    --stat-hover-border: rgba(99, 102, 241, 0.3);
    --upload-hover-bg: rgba(99, 102, 241, 0.06);
}

[data-theme="light"] {
    color-scheme: light;
    --bg: #ffffff;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --border: rgba(15, 23, 42, 0.1);
    --text: #0f172a;
    --text-muted: #64748b;
    --primary: #4f46e5;
    --primary-hover: #6366f1;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --credit: #059669;
    --debit: #e11d48;
    --radius: 16px;
    --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
    --glass: rgba(15, 23, 42, 0.03);
    --navbar-bg: rgba(255, 255, 255, 0.92);
    --backdrop: rgba(15, 23, 42, 0.35);
    --modal-backdrop: rgba(15, 23, 42, 0.45);
    --body-gradient-1: rgba(99, 102, 241, 0.1);
    --body-gradient-2: rgba(34, 197, 94, 0.06);
    --alert-success-text: #166534;
    --alert-error-text: #991b1b;
    --alert-info-text: #3730a3;
    --input-focus-ring: rgba(79, 70, 229, 0.12);
    --stat-hover-border: rgba(79, 70, 229, 0.25);
    --upload-hover-bg: rgba(79, 70, 229, 0.05);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -20%, var(--body-gradient-1), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, var(--body-gradient-2), transparent);
}

a {
    color: inherit;
    text-decoration: none;
}

/* Navbar */
.navbar {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
    background: var(--navbar-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1rem;
    width: 100%;
}

.nav-menu {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    gap: 1rem;
    padding: 0 2rem 1rem;
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 0.5rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.navbar.open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar.open .nav-toggle span:nth-child(2) {
    opacity: 0;
}

.navbar.open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--backdrop);
    z-index: 99;
}

.nav-backdrop.show {
    display: block;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.1rem;
}

.brand-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), #a855f7);
    border-radius: 10px;
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    gap: 0.25rem;
}

.nav-links a {
    padding: 0.5rem 1rem;
    border-radius: 10px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
    background: var(--glass);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-badge {
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 0.35rem 0.75rem;
    background: var(--surface-2);
    border-radius: 999px;
    border: 1px solid var(--border);
}

.role-badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.25rem 0.55rem;
    border-radius: 999px;
}

.role-admin {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary-hover);
    border: 1px solid rgba(99, 102, 241, 0.25);
}

.role-staff {
    background: rgba(34, 197, 94, 0.12);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.staff-name {
    font-weight: 600;
    font-size: 0.85rem;
}

.staff-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
}

/* Auth page */
.auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
}

.auth-theme-wrap {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

/* Theme switch */
.theme-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 999px;
}

.theme-btn {
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
}

.theme-btn:hover {
    color: var(--text);
}

.theme-btn.active {
    background: var(--primary);
    color: #fff;
}

[data-theme="light"] .theme-btn.active {
    color: #fff;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: var(--shadow);
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo .brand-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
}

.auth-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.auth-logo p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* Cards */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.page-header p {
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.page-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: transform 0.2s, border-color 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--stat-hover-border);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 0.5rem;
    letter-spacing: -0.02em;
}

.stat-value.credit { color: var(--credit); }
.stat-value.debit { color: var(--debit); }
.stat-value.primary { color: var(--primary-hover); }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.form-group .hint {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    color: white;
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    color: var(--text);
    background: var(--glass);
}

.btn-sm {
    padding: 0.45rem 0.85rem;
    font-size: 0.8rem;
}

.btn-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.btn-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.btn-block {
    width: 100%;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 10px;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.25);
    color: var(--alert-success-text);
}

.alert-error {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: var(--alert-error-text);
}

.alert-info {
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.25);
    color: var(--alert-info-text);
}

/* Table */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    -webkit-overflow-scrolling: touch;
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

table.data-table th {
    text-align: left;
    padding: 0.875rem 1rem;
    background: var(--surface-2);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

table.data-table td {
    padding: 0.875rem 1rem;
    border-top: 1px solid var(--border);
    vertical-align: middle;
}

table.data-table tbody tr:hover {
    background: var(--glass);
}

.narration-cell {
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.amount-credit { color: var(--credit); font-weight: 600; }
.amount-debit { color: var(--debit); font-weight: 600; }

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-claimed {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.badge-unclaimed {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

/* Filters */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    align-items: center;
}

.filters-bar input,
.filters-bar select {
    padding: 0.6rem 1rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.875rem;
}

.filters-bar .filter-search {
    flex: 1;
    min-width: 200px;
}

.filters-bar .filter-date {
    min-width: 150px;
    flex: 0 1 auto;
}

.filter-date-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.filter-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.filter-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filters-bar .filter-select {
    min-width: 140px;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.pagination a,
.pagination span {
    padding: 0.5rem 0.85rem;
    border-radius: 8px;
    font-size: 0.85rem;
    border: 1px solid var(--border);
}

.pagination a:hover {
    background: var(--glass);
}

.pagination .current {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Upload zone */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.2s;
    cursor: pointer;
    background: var(--glass);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: var(--upload-hover-bg);
}

.upload-zone input[type="file"] {
    display: none;
}

.upload-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.open {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: var(--modal-backdrop);
    backdrop-filter: blur(4px);
}

.modal-dialog {
    position: relative;
    width: 100%;
    max-width: 520px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    animation: modalIn 0.25s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.25rem;
}

.modal-close:hover {
    color: var(--text);
}

.modal-body {
    padding: 1.5rem;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 0.5rem;
}

.txn-info-card {
    background: var(--surface-2);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
}

.txn-info-card .row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.35rem;
}

.txn-info-card .label {
    color: var(--text-muted);
}

.claimed-info {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.claimed-info strong {
    color: var(--success);
}

/* Quick actions */
.quick-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

/* Tablet */
@media (min-width: 769px) {
    .navbar {
        flex-direction: row;
        flex-wrap: nowrap;
        align-items: center;
        padding: 1rem 2rem;
    }

    .nav-top {
        padding: 0;
        width: auto;
        flex-shrink: 0;
    }

    .nav-menu {
        display: flex !important;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 0;
        flex: 1;
    }
}

@media (max-width: 992px) {
    .nav-menu {
        padding: 0 1.25rem 1rem;
    }

    .main-content {
        padding: 1.25rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-top {
        padding: 0.75rem 1rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        padding: 0 1rem 1rem;
    }

    .navbar.open .nav-menu {
        display: flex;
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 0.35rem;
    }

    .nav-links a {
        padding: 0.75rem 1rem;
        width: 100%;
    }

    .nav-user {
        flex-wrap: wrap;
        width: 100%;
        padding-top: 0.75rem;
        border-top: 1px solid var(--border);
    }

    .nav-user .theme-switch {
        width: 100%;
        justify-content: center;
    }

    .nav-user .btn {
        margin-left: auto;
    }

    .brand-text {
        font-size: 1rem;
    }

    .main-content {
        padding: 1rem;
    }

    .page-header {
        margin-bottom: 1.25rem;
    }

    .page-header h1 {
        font-size: 1.4rem;
    }

    .page-header p {
        font-size: 0.875rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-value {
        font-size: 1.35rem;
    }

    .quick-actions {
        flex-direction: column;
        gap: 0.65rem;
    }

    .quick-actions .btn {
        width: 100%;
    }

    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filters-bar .filter-search,
    .filters-bar .filter-select,
    .filters-bar .filter-date-wrap,
    .filters-bar .filter-date {
        width: 100%;
        min-width: 0;
        flex: none;
    }

    .filter-actions {
        width: 100%;
    }

    .filter-actions .btn {
        flex: 1;
    }

    .card {
        padding: 1rem;
    }

    .auth-page {
        padding: 1rem;
        align-items: flex-start;
        padding-top: 2rem;
    }

    .auth-card {
        padding: 1.5rem;
    }

    .upload-zone {
        padding: 2rem 1rem;
    }

    .modal {
        padding: 0;
        align-items: flex-end;
    }

    .modal-dialog {
        max-width: none;
        max-height: 92vh;
        overflow-y: auto;
        border-radius: var(--radius) var(--radius) 0 0;
        margin-top: auto;
    }

    .modal-body {
        padding: 1rem;
    }

    .modal-header {
        padding: 1rem;
    }

    .modal-actions {
        flex-direction: column-reverse;
    }

    .modal-actions .btn {
        width: 100%;
    }

    .txn-info-card .row {
        flex-direction: column;
        gap: 0.15rem;
        margin-bottom: 0.65rem;
    }

    /* Responsive table cards */
    .table-wrap {
        overflow: visible;
        border: none;
        background: transparent;
    }

    table.data-table {
        display: block;
    }

    table.data-table thead {
        display: none;
    }

    table.data-table tbody {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    table.data-table tr {
        display: block;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 0.25rem 0;
        overflow: hidden;
    }

    table.data-table td {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 1rem;
        padding: 0.65rem 1rem;
        border-top: 1px solid var(--border);
        text-align: right;
    }

    table.data-table td:first-child {
        border-top: none;
    }

    table.data-table td::before {
        content: attr(data-label);
        font-weight: 600;
        font-size: 0.7rem;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: var(--text-muted);
        flex-shrink: 0;
        text-align: left;
        padding-top: 0.1rem;
    }

    table.data-table td.cell-action {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    table.data-table td.cell-action::before {
        text-align: left;
    }

    .narration-cell {
        max-width: none;
        white-space: normal;
        word-break: break-word;
        text-align: right;
    }

    .btn-block-mobile {
        width: 100%;
    }

    .pagination {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .nav-user {
        flex-direction: column;
        align-items: stretch;
    }

    .nav-user .btn {
        margin-left: 0;
        width: 100%;
    }

    .user-badge,
    .role-badge {
        text-align: center;
    }
}